Cucumis metulifer
E.Mey. ex Naudin
Cucurbitaceae
The name of this species is sometimes mis-spelt as Cucumis metuliferus[
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
]. The spelling has been corrected to reflect the proper Latin termination (Vienna ICBN Art. 32.7) for the masculine form of this adjectival epithet (see also W. T. Stearn, Botanical Latin ed. 4:91. 1992)
Cucumis metuliferus E.Mey. ex Naudin
Cucumis tinneanus Kotschy & Peyr.
Common Name: Horned Cucumber
A compilation, showing the ripening fruit, fully ripe and cut open.
Photograph by: Owoce Kiwano
Creative Commons Attribution-Share Alike 3.0
A compilation, showing the ripening fruit, fully ripe and cut open.
Photograph by: Owoce Kiwano
Creative Commons Attribution-Share Alike 3.0
The unripe fruit, often eaten more like a cucumber
Photograph by: Joseolgon
Creative Commons Attribution-Share Alike 3.0
A fully ripe fruit, often eaten as a sweet dish
Photograph by: Ala z
Creative Commons Attribution-Share Alike 3.0
General Information
Cucumis metuliferus is a vigorous, annual, climbing plant producing stems up to 3 metres long. The stems scramble over the ground, climbing into the surrounding vegetation where they attach themselves by means of tendrils[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The plant is gathered from the wild for local us as a food and medicine. Improved cultivars have been developed and the plant is sometimes cultivated commercially for its fruit in tropical and sub-tropical climates. The plant has been developed especially in New Zealand, Kenya and Israel as a commercial fruit which has become fashionable in W European markets[
].
Known Hazards
The sprouting seed produces a toxic substance in its embryo[
65- Title
- A Colour Atlas of Poisonous Plants.
- Publication
-
- Author
- Frohne. D. and Pfänder. J.
- Publisher
- Wolfe
- Year
- 1984
- ISBN
- 0723408394
- Description
- Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.
].
Bitter-tasting fruits are often considered to be toxic by local people[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
A significant proportion of wild-growing horned cucumber plants encountered in southern Africa are bitter-fruited and have caused poisoning. Bitter mature fruits may remain completely intact on the plants, as neither baboons nor other wildlife eat them. The amount of bitterness varies in immature and mature fruits on the same plant, with younger fruits having a less bitter taste. Bitterness is due primarily to the presence of cucurbitacins, bitter and toxic compounds occurring in Cucurbitaceae. Cucurbitacins can cause severe illness and death, due to their potent action as purgatives and laxatives[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Botanical References
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
308- Title
- Flora Zambesiaca
- Publication
-
- Author
-
- Website
- http://apps.kew.org/efloras/fz/intro.html
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online flora of plants from the Zambezi River basin. It lists a number of the plant uses as well as the habitats and botanical descriptions of the plants.
Range
Tropical Africa.
Habitat
Semi-evergreen forest, woodland, wooded grassland and grassland, also on abandoned cultivated land, often riverine at elevations of 300 - 1,100 metres[
308- Title
- Flora Zambesiaca
- Publication
-
- Author
-
- Website
- http://apps.kew.org/efloras/fz/intro.html
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent online flora of plants from the Zambezi River basin. It lists a number of the plant uses as well as the habitats and botanical descriptions of the plants.
].
Properties
Edibility Rating | |
Medicinal Rating | |
Other Uses Rating | |
Habit | Annual Climber |
Height | 1.50 m |
Pollinators | Insects |
Self-fertile | Yes |
Cultivation Status | Cultivated, Wild |
Cultivation Details
The horned melon is a warm-season plant growing in tropical to subtropical and warm temperate regions, and does not tolerate cold conditions. It occurs at elevations from near sea level to 1,800 metres. A semi-arid climate with a warm-season rainfall regime appears to enhance the fruit ripening stage, allowing fruits to develop their full flavour[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Requires a rich, well-drained moisture retentive soil and a very warm, sunny sheltered position[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. Plants tolerate a wide range of soil types throughout their natural distribution area[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Flowering starts about 8 weeks after sowing the seed, with male flowers appearing first, followed after several days by female flowers[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Under field conditions, time from sowing to harvest is around 15 weeks[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
In New Zealand growers harvest up to 20 tonnes of fruit per hectare, in California about 8 tonnes whilst growers in Israel have harvested up to 46 tonnes[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Sweet-fruited plants reseed themselves with little management and protection in Zimbabwe. The fruits continue to be sweet, barring the occasional pollination by bitter-fruited wild plants[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Fruits of horned melon in southern Africa continue ripening after the cessation of the rainy season, long after the stems have died back[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
There are some named varieties.
This species does not hybridize with other members of the genus[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Edible Uses
Fruit - raw or cooked[
2- Title
- Sturtevant's Edible Plants of the World.
- Publication
-
- Author
- Hedrick. U. P.
- Publisher
- Dover Publications
- Year
- 1972
- ISBN
- 0-486-20459-6
- Description
- Lots of entries, quite a lot of information in most entries and references.
,
46- Title
- Dictionary of Economic Plants.
- Publication
-
- Author
- Uphof. J. C. Th.
- Publisher
- Weinheim
- Year
- 1959
- ISBN
- -
- Description
- An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
61- Title
- A Dictionary of Plants Used by Man.
- Publication
-
- Author
- Usher. G.
- Publisher
- Constable
- Year
- 1974
- ISBN
- 0094579202
- Description
- Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
,
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. Used in salads in some parts of Africa[
46- Title
- Dictionary of Economic Plants.
- Publication
-
- Author
- Uphof. J. C. Th.
- Publisher
- Weinheim
- Year
- 1959
- ISBN
- -
- Description
- An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
]. These are many, differing reports on the flavour of the fruit - this depends largely upon the state of ripeness at which the fruit is eaten and the cultivar that is eaten[
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
]. Some forms are insipid, whilst others, especially from wild forms, can be rather bitter[
105- Title
- Tanaka's Cyclopedia of Edible Plants of the World.
- Publication
-
- Author
- Tanaka. T. & Nakao S.
- Publisher
- Keigaku Publishing; Tokyo
- Year
- 1976
- ISBN
- -
- Description
- The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
,
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. The better, cultivated forms often look and taste like cucumbers if eaten when immature, whilst mature fruits may develop a sweet dessert-fruit flavour[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. A succulent, green pulp with a slightly sweet flavour[
416- Title
- Brazilian Fruits and Cultivated Exotics
- Publication
-
- Author
- Lorenzi. H.; Bacher. L.; Lacerda. M.; Sartori. S.
- Publisher
- Instituto Plantarum De Estudos Da Flora LTDA; Brazil.
- Year
- 2000
- ISBN
- 85-867174-24-0
- Description
- A superb book, giving information on several hundred fruit species. Each entry has a brief description of the plant and its uses, accompanied by one to many excellent quality photographs of the fruits.
]. The ripe fruit is cut open and sprinkled with sugar, which enhances the flavour considerably[
377- Title
- Trade Winds Fruit
- Publication
-
- Author
-
- Website
- http://www.tradewindsfruit.com/index.htm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- The on-line catalogue of a company selling seeds. Gives descriptions, photos and uses of a very wide range of fruit and other food-producing plants plus ornamentals.
]. Said to have a banana-lime flavour and often sold in speciality stores in Europe and America, the fruit is not considered to be very desirable in its native area and it is only eaten in times of scarcity[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. The bright orange, ovoid fruit is covered with numerous prominent spines, it can be 15 - 22cm long[
377- Title
- Trade Winds Fruit
- Publication
-
- Author
-
- Website
- http://www.tradewindsfruit.com/index.htm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- The on-line catalogue of a company selling seeds. Gives descriptions, photos and uses of a very wide range of fruit and other food-producing plants plus ornamentals.
].
Seed - raw[
57- Title
- Plants for Man.
- Publication
-
- Author
- Schery. R. W.
- Publisher
-
- Year
-
- ISBN
-
- Description
- Fairly readable but not very comprehensive. Deals with plants from around the world.
,
86- Title
- Gourds.
- Publication
-
- Author
- Organ. J.
- Publisher
- Faber
- Year
- 1963
- ISBN
- -
- Description
- Deals with squashes and their relatives. Interesting and readable, it gives cultivation techniques and some details of plant uses.
,
377- Title
- Trade Winds Fruit
- Publication
-
- Author
-
- Website
- http://www.tradewindsfruit.com/index.htm
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- The on-line catalogue of a company selling seeds. Gives descriptions, photos and uses of a very wide range of fruit and other food-producing plants plus ornamentals.
]. Rich in oil with a nutty flavour but very fiddly to use because the seed is small and covered with a fibrous coat[
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Leaves - cooked and eaten as a vegetable[
177- Title
- Plants for Human Consumption.
- Publication
-
- Author
- Kunkel. G.
- Publisher
- Koeltz Scientific Books
- Year
- 1984
- ISBN
- 3874292169
- Description
- An excellent book for the dedicated. A comprehensive listing of Latin names with a brief list of edible parts.
,
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
,
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Medicinal
The seeds are vermifuge[
7- Title
- Encyclopaedia of Medicinal Plants.
- Publication
-
- Author
- Chiej. R.
- Publisher
- MacDonald
- Year
- 1984
- ISBN
- 0-356-10541-5
- Description
- Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
]. They are ground into a fine flour, then made into an emulsion with water and eaten. It is then necessary to take a purge in order to expel the tapeworms or other parasites from the body[
7- Title
- Encyclopaedia of Medicinal Plants.
- Publication
-
- Author
- Chiej. R.
- Publisher
- MacDonald
- Year
- 1984
- ISBN
- 0-356-10541-5
- Description
- Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
].
The root is used for the relief of pain following childbirth[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
The fruit is said to possess medico-magical properties and is used to treat eruptive fevers in ‘Sakpata voodoo’ rituals[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. The decorticated fruit macerated in distilled palm wine or lemon juice is used to treat smallpox and skin rashes[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Cucumis metuliferus contains cucurbitacin B, a triterpene known to exhibit cytotoxic, antitumor and anti-inflammatory activities[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
Other Uses
Used as a rootstock for Cucumis sativus, conferring disease resistance[
183- Title
- Cornucopia - A Source Book of Edible Plants.
- Publication
-
- Author
- Facciola. S.
- Publisher
- Kampong Publications
- Year
- 1990
- ISBN
- 0-9628087-0-9
- Description
- Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
]. Since this species is less cold tolerant than Cucumis sativus, it is probably not suitable as a rootstock in cool temperate areas.
Propagation
Seed - sow early to mid spring in a greenhouse in a rich soil. Germination should take place within 2 weeks. Sow 2 or 3 seeds per pot and thin out to the best plant. Grow them on fast and plant out after the last expected frosts, giving them cloche or frame protection for at least their first few weeks if you are trying them outdoors.